Date and Time of the Query: 2019-08-17 T09:00:16 PDT
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Velocity(km/s): Unconstrained
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Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

Detailed Information for Object No. 4

INDEX for Seyfert's Sextet
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

16 Photometric data point(s) and SED   
Redshift-Independent Distances
92 Reference(s)   
6 Position data point(s)
6 Redshift data point(s)   
1 Diameter data point(s)   
8 Note(s)   
UGC data    

ESSENTIAL NOTE for Seyfert's Sextet (Back to INDEX)
SDSS J155912.54+204548.1 magnitude and redshift are for NGC 6027.               

CROSS-IDENTIFICATIONS for Seyfert's Sextet (Back to INDEX)
Object Names Type Object Names Type
Seyfert's SextetGGroupSerpens Sextet GGroup
UGC 10116 GGroupSDSS J155912.54+204548.1 G
VV 115 GGroupIRAS 15570+2053 IrS
KUG 1556+208 GGroupIRAS F15570+2053 IrS
VII Zw 631 GGroupHCG 079 GGroup
CGCG 137-010 GGroupRSCG 77 GGroup
CGCG 1557.0+2055 GGroup[RPG97] 370 GGroup
CGPG 1557.0+2055 GGroup    

COORDINATES for Seyfert's Sextet (Back to INDEX)

Position Reference:1996AJ....112..871B

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)   239.25000    20.89972   15h57m00.0s    +20d53m59s  1.50E+01  1.50E+01    0
Equatorial (J2000.0)   239.79945    20.75855   15h59m11.9s    +20d45m31s  1.50E+01  1.50E+01    0
Ecliptic   (B1950.0)   231.22625    40.29509                              1.50E+01  1.50E+01    0
Ecliptic   (J2000.0)   231.92793    40.28971                              1.50E+01  1.50E+01    0
Galactic                34.97057    46.87130                              1.50E+01  1.50E+01    0
SuperGalactic          102.69051    48.07112                              1.50E+01  1.50E+01    0
Additional detailed measurements with references are also available by clicking below:
6 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
HierarchySRSupercluster (RV-confirmed) member...1979ApJ...234..793T
Galaxy MorphologyGROUPgroup...1973UGC...C...0000N
3 Detailed Classification(s)

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map.
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA;
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.

L a n d o l tS D S SU K I R T
Filter [µm]U (0.35)B (0.43)V (0.54)R (0.64)I (0.80)u (0.36)g (0.47)r (0.62)i (0.75)z (0.89)J (1.25)H (1.66)K (2.19)L' (3.78)
Aλ [mag]0.2380.1990.1510.1190.0830.2330.1810.1260.0930.0690.0390.0250.0170.008
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU K I R T
Filter [µm]U (0.34)B (0.44)V (0.54)R (0.65)I (0.81)u (0.35)g (0.49)r (0.63)i (0.78)z (0.93)J (1.27)H (1.67)K (2.22)L' (3.81)
Aλ [mag]0.2980.2370.1820.1470.1070.2830.2080.1510.1150.0810.0500.0320.0200.008

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.110 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for Seyfert's Sextet (Back to INDEX)
Helio. Radial Velocity     :      4347 km/s       
Redshift                   :  0.014500           1992ApJ...399..353H
Morphology                 : Compact Group       
Magnitude and Filter       : 13.4 
Size (arcmin)              :  1.66
Population Count           :  0.49

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.
Additional detailed measurements with references are also available by clicking below:
6 Redshift data point(s)      16 photometric data point(s)      1 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :    4347  km/s                1992ApJ...399..353H
V (Kinematic LSR)          :    4364  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :    4448 +/-      4 km/s      1991RC3.9.C...0000d
V (Local Group)            :    4445 +/-      6 km/s      1996AJ....111..794K
V (3K CMB)                 :    4439 +/-      6 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    4621 +/-     14 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    4933 +/-     26 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    4962 +/-     26 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :    60.9 +/-    4.3 Mpc      (m-M) = 33.92 +/- 0.15 mag
D (Local Group)            :    60.9 +/-    4.3 Mpc      (m-M) = 33.92 +/- 0.15 mag
D (3K CMB)                 :    60.8 +/-    4.3 Mpc      (m-M) = 33.92 +/- 0.15 mag
D (Virgo Infall only)      :    63.3 +/-    4.4 Mpc      (m-M) = 34.01 +/- 0.15 mag
D (Virgo + GA only)        :    67.6 +/-    4.7 Mpc      (m-M) = 34.15 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    68.0 +/-    4.8 Mpc      (m-M) = 34.16 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     295 pc/arcsec =  0.295 kpc/arcsec =  17.72 kpc/arcmin =   1.06 Mpc/degree
Scale (Local Group)        :     295 pc/arcsec =  0.295 kpc/arcsec =  17.71 kpc/arcmin =   1.06 Mpc/degree
Scale (3K CMB)             :     295 pc/arcsec =  0.295 kpc/arcsec =  17.69 kpc/arcmin =   1.06 Mpc/degree
Scale (Virgo Infall only)  :     307 pc/arcsec =  0.307 kpc/arcsec =  18.41 kpc/arcmin =   1.10 Mpc/degree
Scale (Virgo + GA only)    :     328 pc/arcsec =  0.328 kpc/arcsec =  19.66 kpc/arcmin =   1.18 Mpc/degree
Scale(Virgo + GA + Shapley):     330 pc/arcsec =  0.330 kpc/arcsec =  19.77 kpc/arcmin =   1.19 Mpc/degree

To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
Search for Objects within +/-arcmin where 100 kpc = 5.058 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 4347 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.014806 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 61.5 Mpc (m-M) = 33.94 mag Angular-Size Distance : 59.7 Mpc (m-M) = 33.88 mag Co-Moving Radial Distance : 60.6 Mpc (m-M) = 33.91 mag Co-Moving Tangential Dist. : 60.6 Mpc (m-M) = 33.91 mag Co-Moving Volume : 0.000933 Gpc^3 Light Travel-Time : 0.196 Gyr Age at Redshift 0.014806 : 13.103 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 290 pc/arcsec = 0.290 kpc/arcsec = 17.38 kpc/arcmin = 1.04 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.94291; Magnitude per Unit Area = 0.06383 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
VisualR (Johnson) 11.75 mag 1973ApJ...183..711S-22.19 [mag] 2.80E+10
Mid-Infrared25 microns (IRAS) 9.087E-02 +/- 27 % Jy 1990IRASF.C...0000M 4.94E+35 +/- 1.64E+35 [W] 1.28E+09 +/- 4.27E+08
Far-Infrared100 microns (IRAS) 2.316E+00 +/- 11 % Jy 1990IRASF.C...0000M 3.15E+36 +/- 7.19E+35 [W] 8.20E+09 +/- 1.87E+09
Radio2380 MHz 14. +/- 3. milliJy 1978ApJS...36...53D 1.51E+31 +/- 4.42E+30 [W] 3.92E+04 +/- 1.15E+04
NOTE: The above quantities are derived using a Distance Modulus of 33.94 mag corresponding to
a Luminosity Distance of 61.5 Mpc [assuming 10%uncertainty] using the Cosmology-Corrected Quantities.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 16 Photometric data point(s) available in NED.


The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 114.0060.42... About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N37.5719.91
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.330 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 1 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for Seyfert's Sextet Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- Seyfert's SextetSIMBAD (CDS, Strasbourg, France)
Uppsala General Catalog -- UGC 10116 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 137-010 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
SDSS Sky Server
IRAS Point Source Catalog -- IRAS 15570+2053 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F15570+2053 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Seyfert's SextetGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- Seyfert's SextetNASA/IPAC Infrared Science Archive (IRSA)
Resources for position 15h59m11.9s, +20d45m31s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
The NRAO Data Archive System

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